Downgrade / Reformat from 3.4.23188

[alexsastos]

Hi @ all,

i have installed Sync 3.4.23188 on my Sync 3 and i want to make a complete wipe and go back to an earlier version cause I have some issues with the Jailbreak and I think also because i was on older 3.4 versions with the known Bugs. So i want to start new from scratch. Which Version would you prefer to downgrade and which settings should i switch in the Syn3Updater Tool? I have configured that I have 3.4.23188 installed at the moment and when i try to create a new USB Stick with Version 3.4.2200 (for example) is still shows “autoinstall” as the install mode. It should be Downgrade or Reformat or am I wrong?
My APIM is from 2016, MY20 Protection settings are on.

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SYNC Region: EU

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: OEM

Old SYNC Version: 3.4.23188

New SYNC Version: 3.4.22200

Do you have a error message, if so what is it?
No, just need information how to do a Downgrade/Reformat

Update Method: CyanLabs Manual Method

[wiz043]

Before you do anything did you do a master reset after uploading version 23188 to the car?
If not that could be the reason you have bugs as there may be remnants of your previous version or whatever.

[Rollback_Jockey]

Did you elect to keep existing maps? If so thats why its not going to reformat.

[alexsastos]

Yes i made a Master Reset but that didn’t solve the issue.

And yes I select to keep existing maps. Just trying to change to reinstall F12 maps again and you are right - the install method switches to downgrade
Is downgrade OK in that case - I must say that i do not realy understand the difference between Downgrade and Reformat

[Rollback_Jockey]

Click the correct buttons to match your intentions, trust in the force.